EP1425117A1 - Hydraulic fast locking and loosening device for bearing assemblies of rolling-mill cylinders, and corresponding method of use - Google Patents
Hydraulic fast locking and loosening device for bearing assemblies of rolling-mill cylinders, and corresponding method of useInfo
- Publication number
- EP1425117A1 EP1425117A1 EP02774548A EP02774548A EP1425117A1 EP 1425117 A1 EP1425117 A1 EP 1425117A1 EP 02774548 A EP02774548 A EP 02774548A EP 02774548 A EP02774548 A EP 02774548A EP 1425117 A1 EP1425117 A1 EP 1425117A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- ring
- bearing
- locking
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/02—Bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/07—Adaptation of roll neck bearings
- B21B31/074—Oil film bearings, e.g. "Morgoil" bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/30—Quick or bayonet couplings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49696—Mounting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
- Y10T29/49822—Disassembling by applying force
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53104—Roller or ball bearing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53796—Puller or pusher means, contained force multiplying operator
- Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7005—Lugged member, rotary engagement
- Y10T403/7007—Bayonet joint
Definitions
- Hydraulic fast locking and loosening device for bearing assemblies of rolling-mill cylinders, and corresponding method of use
- the present invention relates to a hydraulic fast locking and loosening device, which can be temporarily mounted on bearing assemblies that support in rotation the necks of rolls of rolling-mill, for tightening and loosening the chock of the roll neck, as well as to a method for use of said device.
- a further drawback of screw actuated locking devices is that they are difficult to tighten, frequently requiring the use of cables pulled by means of overhead cranes. This process increases the risks of injury for the maintenance staff and possible damage to the equipment.
- Another known technique is to use hydraulically actuated portable tools that can be temporarily mounted on the bearing assemblies of the rolling mills, however, such tools are designed for tightening the bearing assemblies on the roll necks, and are not useful for loosening said bearing assemblies.
- disassembly is carried out with other means, which in all cases comprise the use of overhead cranes and/or of other hydraulically or mechanically operated means.
- the purpose of the present invention is to overcome the problems discussed above of known state-of-the-art fast locking and loosening devices, by providing a hydraulic locking and loosening device adapted for locking and loosening bearing assemblies on roll necks of rolling mills, which is easy to operate and saves both time and work during use.
- Another purpose of the present invention is to provide a hydraulic locking and loosening device which ensures economy of operation, reduces maintenance, and enables an inexpensive conversion of previous more complex mechanical and hydraulic locking systems.
- Another purpose of the invention is to provide a hydraulic locking and loosening device designed to operate on roll ends with end sections that are shorter and of a simpler structure.
- a hydraulic locking and loosening device having the features of Claim 5.
- the inventive configuration of the device comprises a smaller number of components and can be associated to a roll bearing assembly of a particularly simple structure. The reduction in costs that derives therefrom for rolling-mill plants is consequently substantial.
- the structural simplicity of the device renders it easy to use and repair. Since it is easy to remove from its seat on the mill bearing assembly, one hydraulic locking and loosening device can be used on a plurality of roll stands.
- the proposed bearing assembly has a simplified structure and can replace other bearing assemblies of a more complex structure. It is structurally faster and simpler to build and moreover involves a chock end plate for the reinforcement that is of a simpler form, as well as a cover that is also simpler. Brief description of the figures
- Fig. 1 shows a partial longitudinal sectional view of a bearing assembly on which a hydraulic locking and loosening device according to the invention is employed
- Fig. 2 shows a side view of the hydraulic locking and loosening device of the invention
- Fig. 3 shows a view from the rear of the device of Fig. 2;
- Fig. 4 shows a front view of the device of Fig. 2;
- Fig. 5 shows a sectional view of the device illustrated in Fig. 2, mounted on a bearing assembly in operation
- Fig. 6 shows a side view of the device of Fig. 2 installed on a bearing assembly in operation
- Fig. 7 shows a longitudinal section of another embodiment of a hydraulic locking and loosening device according to the invention, installed on a corresponding bearing assembly in operation
- Fig. 8 represents a section, along the line A-A, of the device of Fig. 7;
- Fig. 9 represents a side view of the hydraulic device of Fig. 7.
- the end of the roll 1 in particular of a back-up roll, is represented, with a hydraulic locking and loosening device according to the present invention, globally indicated by the reference numeral 2.
- the roll end portion has a first tapered part 3, advantageously of a conical shape, and a second cylindrical part 4, both parts being supported in rotation in a housing of the frame 5 of the roll mill.
- a seal 6 On the side of the roll of larger diameter, there is provided a seal 6 to retain oil of the oil-film bearing.
- the latter comprises a bushing 7 made of white metal alloy and a sleeve 8 with tapered inner surface to adapt to the tapered portion 3 of the roll.
- the bushing 7 is provided with apertures for oil feed 9 and is fixed on the frame 5 by means of lock pins 10, whilst the sleeve is in turn fixed, in order to prevent rotation, on the roll neck by means of the ring keys 11 and 12.
- chock end plate 13 which is fixed on the frame 5 by means of screws and is closed on the external side by a flange 14.
- a thrust bearing 15 held inside a corresponding hole of the chock end plate 13.
- the thrust bearing 15 is held firm between a ring 16 on the inside of the neck of the cylinder and a thrust ring 17 on the outside.
- the thrust ring 17 is secured to the cylindrical part 4 of the roll, to prevent axial displacement, by a threaded lock ring 18, screwed on a two-part threaded ring 19 and fastened in a groove of the cylindrical part 4.
- Two locking keys 20 ensure locking of the ring 18 to prevent any loosening during the operation of the roll mill.
- the hydraulic locking and loosening device in the partial section above the axis of the bearing assembly, with reference to Fig. 1 , the hydraulic locking and loosening device, globally designated by the reference numeral 30, is installed on the bearing assembly for carrying out the locking operation, and comprises a cylindrical body 21 , surrounded by a ram 22. Both the body 21 and the ram 22 are made in such a way as to form between them two chambers of annular shape and to form a double-acting hydraulic actuator 23.
- a protective end cap 24 closes the hydraulic outer chamber of the actuator 23 formed in the space between the body 22 and the ram 21.
- the device 30 is fixed to the back-up roll body during the locking and loosening operation by means of a fixing screw 26.
- a quick-release coupling 27 enables connection to a hydraulic power source for actuating the device 30.
- the hydraulic locking device 30 is provided with two pin engagement levers 28 for facilitating twist-lock insertion on the back-up roll end.
- Four locking pins 29 are set on the thrust ring 17 and fix the hydraulic device 30 to the bearing assembly during operation.
- the device ram 22 is provided with four arms 31 , each of which has a seat or notch 32 to engage the respective locking pin 29.
- the device 30 is mounted temporarily and releasably, for carrying out the operation, on the end part of the roll 1.
- the device ram 22 is turned through 45° about its own axis with the aid of the levers 28 to engage, with the four arms 31 , the pins 29 by means of the C-shaped seats or notches 32 for blocking the device, which is further fastened on the end of the cylinder by a screw 26, which is screwed on the end part of the cylinder.
- the locking device is then pressurised hydraulically by means of the actuator 23, which exerts an axial force directed towards the left in Fig. 1 , forcing the thrust ring 17 against the thrust bearing 15 and pushing the entire chock and the oil-film bearing assembly against the tapered part 3 of the roll neck.
- the lock ring 18 is then tightened against the thrust ring 17, for example by means of a special C-shaped spanner.
- Two locking keys 20 are fitted in roll end key-ways and screwed to the lock ring 18.
- the pressure is then removed from the assembly device 30, and the latter is then detached from the roll end, first by turning the arms 31 through an angle of 45°, and then by unscrewing the device blocking screw 26.
- the hydraulic locking and loosening device is installed on the bearing assembly for locking operation, and comprises a cylindrical body 41 surrounded by a ram 42.
- the body 41 and the ram 42 are designed in such a way as to provide two chambers of an annular shape, which constitute a double-acting hydraulic actuator 43.
- An end cap 44 closes the external hydraulic chamber of the actuator 43 formed by the space between the body 42 and the ram 41.
- the device 40 is fixed to the back-up roll body during the locking or loosening operation by a first twist-lock bayonet fast-block coupling.
- the first twist-lock bayonet device comprises a certain number of teeth 46 set on the body 41 , which are adapted to engage in the annular groove 47 present on the end part of the roll 1.
- the first bayonet device is operated by aligning the teeth 46 with the splines on the roll end, axially translating the device or tool 40 until the teeth 46 are set on the annular groove 47 and turning it through a given angle, for example 45°.
- the tool is thus fixed to the roll end .
- the hydraulic locking device 40 is provided with two levers 48', 48" used for tool control and for generating the rotary movement necessary for fixing the bayonet device on the roll end.
- a quick-release coupling enables coupling of the hydraulic actuator 43 to a hydraulic pump for engaging the bayonet arrangement 52, 53 to the end of the cylinder 1 when the hydraulic pressure is applied in the inner annular chamber and for disengaging when the hydraulic pressure is applied in the outer annular chamber.
- a suspension arm 58 is advantageously provided for gripping the tool with a lifting device (not illustrated in the figures). This arm facilitates manipulation of the tool during operation, or else for storing.
- the operation of the device 40, when it is used for the locking of the bearing, is as described in what follows. Whenever it is necessary to fix the oil-film bearing 7 and the thrust bearing 15, the various elements of the bearing assembly are fitted around the end part of the roll 1. The bushing 7 is fitted first, followed by the sleeve 8 and the ring 16, and finally by the thrust bearing 15 and the thrust ring 17. The chock end plate is closed by the flange 14, and next the ring 19 with a thread on its outer surface is shifted onto the roll end and finally the lock ring 18 is screwed onto the ring 19.
- the device 40 is installed, temporarily and releasably for carrying out the operation, at the end of the roll 1.
- the device is then turned about its own axis through an angle of, for example, 45°, using the levers 48 for engaging the first twist-lock bayonet device with the roll end and the second twist-lock bayonet with the thrust ring 57.
- the assembly device 40 is then supplied with hydraulic fluid under pressure by means of the actuator 43, which exerts an axial force directed towards the left of Fig. 7, forcing the thrust ring 57 against the thrust bearing 15 and pushing the entire reinforcement and the oil-film bearing in close contact against the tapered part of the roll neck (not illustrated in detail in this figure).
- the lock ring 18 is then tightened against the thrust ring 57, for example by means of a special C-shaped spanner. If necessary, locking keys are inserted in keyways at the roll end and screwed to the lock ring 18.
- the pressure is then removed from the locking device 40, and the latter is detached from the end of the cylinder by turning the bayonet devices through an angle of approximately 45° and then axially sliding the locking device away from the roll end.
- the process for loosening and removing the chock and the bearing assembly using the same locking and loosening device 40 is the reverse of the one described above, in which the same tool is used for pulling away the thrust ring 57 from the chock end plate 14. .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001MI001859A ITMI20011859A1 (en) | 2001-09-04 | 2001-09-04 | HYDRAULIC ASSEMBLY AND QUICK DISASSEMBLY OF LAMINATION CYLINDER BEARINGS AND RELATED METHOD OF USE |
ITMI20011859 | 2001-09-04 | ||
ITMI20010185 | 2001-09-04 | ||
PCT/EP2002/009785 WO2003022471A1 (en) | 2001-09-04 | 2002-09-02 | Hydraulic fast locking and loosening device for bearing assemblies of rolling-mill cylinders, and corresponding method of use |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1425117A1 true EP1425117A1 (en) | 2004-06-09 |
EP1425117B1 EP1425117B1 (en) | 2005-02-02 |
Family
ID=11448328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02774548A Expired - Lifetime EP1425117B1 (en) | 2001-09-04 | 2002-09-02 | Hydraulic fast locking and loosening device for bearing assemblies of rolling-mill cylinders, and corresponding method of use |
Country Status (7)
Country | Link |
---|---|
US (1) | US7386939B2 (en) |
EP (1) | EP1425117B1 (en) |
CN (1) | CN1258407C (en) |
AT (1) | ATE288331T1 (en) |
DE (1) | DE60202882T2 (en) |
IT (1) | ITMI20011859A1 (en) |
WO (1) | WO2003022471A1 (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10335527A1 (en) | 2003-07-31 | 2005-02-17 | Sms Demag Ag | Device for removing bearing unit from roll neck of supporting roller of mill stand comprises nut fixed to roll neck to be supported on bearing unit |
US7823492B2 (en) | 2005-06-09 | 2010-11-02 | Siemens Industry, Inc. | Dual ratio drive for rotary shear |
US7380431B2 (en) * | 2005-07-18 | 2008-06-03 | Morgan Construction Company | Oil film bearing with compact hydraulic mount |
DE102006019448A1 (en) * | 2006-04-24 | 2007-10-25 | Sms Demag Ag | puller |
US7857522B2 (en) * | 2007-01-31 | 2010-12-28 | Siemens Industry, Inc. | Rolling mill oil film bearing |
US7500374B2 (en) * | 2007-04-03 | 2009-03-10 | Morgan Construction Company | Apparatus for urging an oil film bearing onto and off of a roll neck in a rolling mill |
US8021055B2 (en) * | 2007-09-05 | 2011-09-20 | Siemens Industry, Inc. | Mechanical lock for rolling mill oil film bearing |
JP5045360B2 (en) * | 2007-10-11 | 2012-10-10 | 株式会社ジェイテクト | Replacement method of rolling bearing support bearings |
ITUD20090062A1 (en) | 2009-03-26 | 2010-09-27 | Danieli Off Mecc | CONNECTION COMPONENT FOR OIL FILM BEARINGS |
US8336433B2 (en) | 2009-07-21 | 2012-12-25 | Siemens Industry, Inc. | Rotary shear |
KR101033812B1 (en) * | 2010-02-03 | 2011-05-13 | 주식회사 한스코 | Oil bearing |
WO2011096672A2 (en) * | 2010-02-03 | 2011-08-11 | Hankuk Special Steel Co.,Ltd | Structure for fixing shaft and oil film bearing |
DE102010047471A1 (en) * | 2010-10-06 | 2012-04-12 | Sms Siemag Ag | Method for processing a bearing arrangement and bearing arrangement |
DE102010064102B4 (en) * | 2010-12-23 | 2014-09-25 | Sms Siemag Ag | Bearing arrangement and rolling unit for a rolling mill roll |
CN102141074B (en) * | 2011-04-07 | 2012-10-03 | 杭州前进齿轮箱集团股份有限公司 | Swelling-pressure locking round nut of working shaft |
CN102141071B (en) * | 2011-04-07 | 2012-10-03 | 杭州前进齿轮箱集团股份有限公司 | Heavy loading shaft push device for hole |
US9334890B2 (en) | 2012-01-24 | 2016-05-10 | Kennametal India Limited | Hardmetal roll clamping system onto the shaft and the method thereof |
CN103846282B (en) * | 2014-03-25 | 2015-12-30 | 济钢集团有限公司 | A kind of hot rolling roughing mill working roll mandril protector |
DE102014224734A1 (en) * | 2014-12-03 | 2016-06-09 | Takraf Gmbh | Two-roll roller press with axial bearing construction |
CN107532652B (en) * | 2015-06-04 | 2019-06-28 | 三菱重工发动机和增压器株式会社 | Bearing arrangement and booster |
DE102016214011A1 (en) * | 2016-04-08 | 2017-10-12 | Sms Group Gmbh | Apparatus and method for mounting a bearing on a roll neck and for removing the bearing from the roll neck |
CN110116384B (en) * | 2019-05-10 | 2021-01-01 | 中车青岛四方机车车辆股份有限公司 | Gear box bearing cover assembling tool and assembling method |
CN110102604A (en) * | 2019-06-06 | 2019-08-09 | 中冶赛迪技术研究中心有限公司 | A kind of roller end axial locking device and its installation method |
CN114289519B (en) * | 2021-12-24 | 2023-07-25 | 重庆钢铁股份有限公司 | Quick dismounting method for working roller |
IT202200004691A1 (en) * | 2022-03-11 | 2023-09-11 | Danieli Off Mecc | APPARATUS AND PROCEDURE FOR THE SELECTIVE IMPLEMENTATION OF ROTARY TYPE LOCKING BODIES |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3080199A (en) * | 1961-09-01 | 1963-03-05 | Morgan Construction Co | Integral bearing mounting and dismounting means |
DE2006954C3 (en) * | 1970-02-16 | 1978-10-05 | Sack Gmbh, 4000 Duesseldorf | Roll neck bearing |
GB1342316A (en) * | 1970-02-16 | 1974-01-03 | Sack Gmbh Maschf | Bearing assemblies for rollers |
US3782796A (en) * | 1972-12-18 | 1974-01-01 | Morgan Construction Co | Retaining means for a bearing assembly |
US4352229A (en) * | 1980-09-18 | 1982-10-05 | Bethlehem Steel Corporation | Bearing retaining and positioning means |
DE3605615A1 (en) * | 1986-02-21 | 1987-08-27 | Schloemann Siemag Ag | SHAFT PIN WITH BAYONET CLOSURE, IN PARTICULAR FOR FASTENING THE INTERNAL CYLINDER OF A HYDRAULIC DRAWING DEVICE FOR ROLLER BEARINGS ON THE ROLL PIN |
US5029461A (en) * | 1988-02-18 | 1991-07-09 | N H C, Inc. | Hydraulic fastener |
DE9114718U1 (en) | 1991-11-26 | 1992-01-16 | Shen Feng Tools Co., Ltd., Chingshui Town, Taichung | Hydraulic puller |
US6149309A (en) * | 1999-07-13 | 2000-11-21 | Morgan Construction Company | Bushing for oil film bearing |
US6415489B1 (en) * | 1999-07-29 | 2002-07-09 | Morgan Construction Company | Hydraulically actuated tool for mounting and dismounting rolling mill roll neck bearings |
DE19945070A1 (en) * | 1999-09-20 | 2001-03-22 | Sms Demag Ag | Device for mounting and removing a support roller bearing unit |
US6575638B2 (en) * | 2000-09-28 | 2003-06-10 | Morgan Construction Company | Bayonet roll end adaptor |
-
2001
- 2001-09-04 IT IT2001MI001859A patent/ITMI20011859A1/en unknown
-
2002
- 2002-09-02 DE DE60202882T patent/DE60202882T2/en not_active Expired - Lifetime
- 2002-09-02 EP EP02774548A patent/EP1425117B1/en not_active Expired - Lifetime
- 2002-09-02 CN CNB028173031A patent/CN1258407C/en not_active Expired - Fee Related
- 2002-09-02 US US10/487,773 patent/US7386939B2/en not_active Expired - Fee Related
- 2002-09-02 WO PCT/EP2002/009785 patent/WO2003022471A1/en not_active Application Discontinuation
- 2002-09-02 AT AT02774548T patent/ATE288331T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO03022471A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE60202882D1 (en) | 2005-03-10 |
WO2003022471A1 (en) | 2003-03-20 |
ITMI20011859A1 (en) | 2003-03-04 |
CN1258407C (en) | 2006-06-07 |
CN1551808A (en) | 2004-12-01 |
EP1425117B1 (en) | 2005-02-02 |
US7386939B2 (en) | 2008-06-17 |
DE60202882T2 (en) | 2006-04-13 |
ITMI20011859A0 (en) | 2001-09-04 |
ATE288331T1 (en) | 2005-02-15 |
US20040244201A1 (en) | 2004-12-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7386939B2 (en) | Hydraulic fast locking and loosening device for bearing assemblies of rolling-mill cylinders, and corresponding method of use | |
JP3517187B2 (en) | A detachable device for attaching and detaching a bearing at the neck of a rolling mill roll | |
US12023766B2 (en) | Hydraulic tensioning and release tool for expansion fasteners | |
GB2027134A (en) | Axially adjustable bearing assembly | |
US7082800B1 (en) | Device for raising and withdrawing a back-up roll bearing unit | |
CA1323512C (en) | Sleeve mounting and removal tool | |
EA032302B1 (en) | Rolling stand for metal products | |
CN208614641U (en) | A kind of screw rod locking device | |
US4748729A (en) | Mounting a roller in a straightening machine | |
JP3116040B2 (en) | Cantilever roll assembly | |
WO1996002363A1 (en) | Hydraulic bolt tensioning arrangement | |
EP1478474B1 (en) | Tightening and untightening device for bearings of rolling mills | |
EP0298675B1 (en) | Sleeve mounting and removal tool | |
JPH09314207A (en) | Device for fixing rolling roll | |
CN219599392U (en) | Dismounting device for blind hole bearing outer ring |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20040331 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: CH Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: LI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 60202882 Country of ref document: DE Date of ref document: 20050310 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050502 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050502 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050513 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050902 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050902 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050930 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050930 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20051103 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20060902 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060902 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050702 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20150820 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20150821 Year of fee payment: 14 Ref country code: FR Payment date: 20150824 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150828 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60202882 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 288331 Country of ref document: AT Kind code of ref document: T Effective date: 20160902 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160930 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160902 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160902 |